fix: cast port to string before adding to options

This function is hinted as a `string[]` but `Host::getPort()` can return an int or string.

This causes issues in the `rsync_rsh` function has it passes the values of the array to functions that require a string to be used.

Author: Sn0wCrack

src/Host/Host.php

@@ -278,7 +278,7 @@ public function connectionOptions(): array
             }
         }
         if ($this->has('port')) {
-            $options = array_merge($options, ['-p', $this->getPort()]);
+            $options = array_merge($options, ['-p', (string) $this->getPort()]);
         }
         if ($this->has('config_file')) {
             $options = array_merge($options, ['-F', parse_home_dir($this->getConfigFile())]);